* Fix typos

* lowercase animated & opacity

* Undo typo fix

---------
Co-authored-by: Michael Goderbauer <goderbauer@google.com>

* Add Linux unit tests to plugin template

Adds an example native unit test to the plugin template for Linux,
matching the structure we use for our 1P plugin unit tests. Once these
have been added for all platforms+languages, they will be documented on
a new plugin development page to explain their use.

While ideally we would adjust the engine APIs first to allow for testing
the method call handler directly, it's unclear when we will have time
for that work, and for a complex plugin most of the testing wouldn't be
at that layer anyway, so having the structure in place with the
limitations documented is still a significant improvement over having
nothing in the template.

Part of https://github.com/flutter/flutter/issues/82458

* Add creation test

* Add integration tests

* Missing newlines

* test owner

* Typo

* Add Java tests

* Add Kotlin

* Add integration testing

* Add cerate tests

---------
Co-authored-by: schectman <schectman@google.com>

* Update the counter app to enable Material 3

* Fix tools tests

* Update some wording

* Revert all but useMaterial3

* Update comments

* Add Windows unit tests to plugin template

Adds an example native unit test to the plugin template for Windows,
matching the format we use for our 1P plugin example app unit tests.
Once these have been added for all platforms+languages, they will be
documented on a new plugin development page to explain their use.

Since we don't appear to be running our current plugin e2e tests for
Windows, this adds a new configuration to run them. I haven't
`led`-tested this, so it may not work, but this will give a starting
point for getting them running.

Part of https://github.com/flutter/flutter/issues/82458

* Minor fix

* Add test owner

* Fix typo

* Fix test feature flag

* Remove superfluous words.

* Update packages/flutter/lib/src/widgets/slotted_render_object_widget.dart
Co-authored-by: Michael Goderbauer <goderbauer@google.com>

* Add Info.plist from build directory as input path to Thin Binary build phase

* fix directive ordering

* migrate benchmark, integration, and example tests

* Improve Swift plugin implementation

* Add iOS tests

* Review feedback on structure

* Remove duplicate scheme file

* Add macOS

* Add iOS

* swift test tweaks

* unit tests

* Whitespace

* Add e2e tests

* Add an integration test to plugin template example

Dart unit tests don't exercise host-side plugin code at all, so the
example tests in the plugin template currently have very little
meaningful coverage. This adds an integration test to the example app
when creating a plugin, so that there's an example of how to actually
test that a complete round-trip plugin call works.

This is done as a separate template that's currently only used by the
plugin template because I don't know what a good example for a
non-plugin case would be that isn't largely just a duplicate of the
widget tests. However, the integration test pre-includes conditionals
around the parts that are plugin-specific so that it can more easily be
expanded to other use cases later (e.g., in
https://github.com/flutter/flutter/issues/68818).

Part of https://github.com/flutter/flutter/issues/82458

* Add integration test to expected dependencies of a plugin app

* Test fixes

* Make an explicit test case

Closes: https://github.com/flutter/flutter/issues/115347

Increases the minimum macOS deployment target from macOS 10.13 (High Sierra) to 10.14 (Mojave) in the macOS app templates.

Includes:
* Update migration for macOS 10.11 apps to upgrade to 10.14
* Adds migration for macOS 10.13 apps to upgrade to 10.14
* Apply migration to all examples, and integration tests

This does not increase version in the plugin templates since those will need to wait until the 10.14 framework rolls to stable channel, so new plugins can build with apps created with `flutter create` on stable channel.

Issue: https://github.com/flutter/flutter/issues/114445
See RFC: http://flutter.dev/go/flutter-drop-macOS-10.13-2022-q4
See previous patch: https://github.com/flutter/flutter/pull/107689

Previously developers had to edit their `Runner.rc` file to update their executable's version information. Now, version information will automatically be set from `flutter build`'s arguments or the `pubspec.yaml` file for new projects. 

Addresses https://github.com/flutter/flutter/issues/73652

Updates the AppIcon assets in the macOS app template to meet Apple's
icon guidelines as of macOS Big Sur. Assets were moved to the
[flutter_template_images][1] package, which includes them as of version
4.1.0.

Ref: https://developer.apple.com/design/human-interface-guidelines/macos/icons-and-images/app-icon/

Issue: https://github.com/flutter/flutter/issues/103371

[1]: https://github.com/flutter/packages/tree/main/packages/flutter_template_images